Home / 42,657.88-63,996-13,077.76

Finding the Fourth Proportional to 42,657.88, 63,996 and 13,077.76

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Solution

The fourth proportional to 42,657.88, 63,996 and 13,077.76 is: 19,619.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,657.88 : 63,996 = 13,077.76 : x
  2. Step 2: Convert to fraction form
    42,657.88/63,996 = 13,077.76/x
  3. Step 3: Cross multiply
    42,657.88x = 63,996 × 13,077.76
  4. Step 4: Simplify right side
    42,657.88x = 836,924,328.96
  5. Step 5: Solve for x
    x = 836,924,328.96/42,657.88
  6. Step 6: Final answer
    x = 19,619.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.